Most of the repair calls we run could've been avoided with a little routine attention. Semi-trucks take a beating on a normal week, let alone a hard one, and the trucks that stay out of the shop are almost always the ones with a real maintenance habit behind them. Here's what to stay on top of.
Change the Oil and Filters
As a general rule, plan on changing engine oil roughly every 5,000 miles, though your owner's manual has the real number for your specific engine and duty cycle. Clean oil and filters keep moving parts lubricated and reduce wear on internal components that are expensive to replace if they fail early.
Check Tire Pressure
Tire issues are one of the most common reasons trucks end up stranded, and most of them are preventable with a quick pressure check before you roll out. Under-inflated tires run hotter, wear unevenly, and are more likely to blow out under load — a habit of checking pressure regularly catches problems while they're still cheap to fix.
Brake Inspection
Brakes are one of the most critical safety systems on a semi-truck, full stop. Get in the habit of checking brake function before every trip, and if you're running air brakes, that means inspecting air lines, pads, and drums specifically — not just testing pedal feel.
Clean and Inspect Hoses
Coolant, fuel, and brake fluid lines all run through the engine compartment, and a cracked or leaking hose in any of those systems can take a truck out of service fast. A quick visual check for cracking, wear, or leaks catches most hose failures before they happen on the road.
Build a Maintenance Schedule With Your Mechanic
A written schedule beats memory every time. Some components need attention annually, others on a mileage interval — working out a calendar with your mechanic means nothing slips through the cracks, and it makes it a lot easier to plan repairs around your routes instead of around emergencies. If you want help putting one together, give us a call at (888) 587-3832 and we'll walk through it with you.
Fast Pre-Trip Checklist
- Service and parking brake — pedal firmness and holding resistance
- Cab and exterior — windows, door seals, wipers, roof anchors
- Lights and signals — headlights, brake lights, turn signals, hazards, cab lighting
- Emergency equipment — fire extinguisher, spare fuses, warning triangles, first aid kit
- Seat belts — visual check and function test
- Coolant level — checked at the radiator with the engine off and cooled at least 15 minutes
- Oil level — checked on level ground with the parking brake set
- Mirrors, wipers, and horn function
Why Preventative Maintenance Pays Off
- Fewer breakdowns — regular inspections catch small issues before they become big ones
- More money in your pocket — more road time means more productivity
- Safer trucks and drivers — most preventable incidents are exactly that, preventable
- Better fuel economy — a well-maintained truck simply runs more efficiently
If a pre-trip check turns up something you're not sure about, or you'd rather have a professional set of eyes on it before a long run, we come to you — no need to drive a questionable truck into a shop. Reach us at (888) 587-3832.